Back to workProject 02 · Case study 02 of 06

Mobile product · Usability research

Mobile parking app for professionals

Five professional drivers tried the complete parking flow. The overall usability score looked healthy; their hesitations told a more useful story.

Abstract mobile interface connected to a sequence of research findings.
Visual note

The complete parking journey, with the points where participants paused or retraced a step.

My role
I prepared the heuristic review and ran the workshop. Afterwards, I put task behaviour, comments and questionnaire responses into one redesign brief.
Study scope
5 professional drivers · 2-hour task-based workshop
Methods
Heuristic review · Think-aloud testing · SUS · Journey synthesis

Could professional drivers complete the full parking flow without guidance, and which moments needed redesign before the next iteration?

We followed the real sequence: create an account, find a space, check in and check out. Looking at the journey as a whole kept small interface problems connected to the pressures of a working day.

One complete journey through the app

  1. Before the session

    Walk the flow and learn the drivers’ routines

    A heuristic pass identified likely trouble spots. A short discussion of routes, schedules and parking constraints put them in context.

  2. During the session

    Let each driver work through the core tasks

    Participants worked aloud through the core journey, then completed a questionnaire and talked through the moments that had felt uncertain.

  3. Afterwards

    Put the score back beside the recordings

    Errors and pauses were mapped to the journey. Changes were ranked by whether they blocked a task, created doubt or merely slowed someone down.

The task notes, put back in order

Task notes sat beside the SUS score.

Task notes were placed back on the sequence drivers had followed, making isolated pauses and wrong turns easier to discuss as part of the working day.

Project 02
Dots mark the parts of the flow revisited in the redesign brief.

Participants completed the flow, but several actions caused pauses.

People understood the value of the service and learned the main flow quickly. Account creation, unfamiliar icons and specialist terms still made them stop and ask what to do.

Task notes / participant comments
  1. 01

    Observed flow

    Where people hesitated or chose the wrong action

    Account creation, address entry and unfamiliar action icons created friction despite an otherwise learnable flow.

  2. 02

    Comprehension

    Where labels and status cues needed context

    Dots, scan-based check-in and domain-specific terminology required clearer explanations or more familiar wording.

  3. 03

    Perceived value

    Why the service mattered in daily work

    Participants connected the service to finding spaces more quickly, reducing wasted time and avoiding disruption to deliveries.

What I handed to the redesign team

The handover combined a persona, journey map and screen-level notes covering visibility, terminology, onboarding and action feedback.